Recent advances in biorefinery of astaxanthin from Haematococcus pluvialis

• Published in: Bioresource technology Vol. 288; p. 121606
• Main Authors: Khoo, Kuan Shiong, Lee, Sze Ying, Ooi, Chien Wei, Fu, Xiaoting, Miao, Xiaoling, Ling, Tau Chuan, Show, Pau Loke
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.09.2019
• Subjects: Astaxanthin; Biorefinery; biorefining; Cultivation; Haematococcus pluvialis; ionic liquids; Pretreatment; supercritical fluid extraction; vegetable oil; Biorefinery; Pretreatment; Cultivation; Astaxanthin; Haematococcus pluvialis
• ISSN: 0960-8524; 1873-2976; 1873-2976
• DOI: 10.1016/j.biortech.2019.121606

[Display omitted] •H. pluvialis is one of the abundant sources for production of natural astaxanthin.•Intensive discussion on the life cycle of H. pluvialis.•Advanced and conventional biorefinery techniques of astaxanthin are evaluated.•The future prospect and challenges were discussed in depth. Haematococcus pluvialis is one of the most abundant sources of natural astaxanthin as compared to others microorganism. Therefore, it is important to understand the biorefinery of astaxanthin from H. pluvialis, starting from the cultivation stage to the downstream processing of astaxanthin. The present review begins with an introduction of cellular morphologies and life cycle of H. pluvialis from green vegetative motile stage to red non-motile haematocyst stage. Subsequently, the conventional biorefinery methods (e.g., mechanical disruption, solvent extraction, direct extraction using vegetable oils, and enhanced solvent extraction) and recent advanced biorefinery techniques (e.g., supercritical CO2 extraction, magnetic-assisted extraction, ionic liquids extraction, and supramolecular solvent extraction) were presented and evaluated. Moreover, future prospect and challenges were highlighted to provide a useful guide for future development of biorefinery of astaxanthin from H. pluvialis. The review aims to serve as a present knowledge for researchers dealing with the bioproduction of astaxanthin from H. pluvialis.